MMP9 and urinary bladder cancer: DHT was shown to induce the migration and invasion of bladder cancer cell lines lacking the classical AR where a membrane AR, named mAR-SLC39A9 was expressed, while augmenting the expression of phospho-ERK and MMP9 only in those expressing SLC39A9 [76], indicating that DHT could promote bladder cancer progression via mAR-SLC39A9.